Quasar Sightline and Galaxy Evolution (QSAGE) survey - I. The galaxy environment of O VI absorbers up to z = 1.4 around PKS 0232-04

Bielby, R.M.; Stott, J.P.; Cullen, F.; Tripp, T.M.; Burchett, J.N.; Fumagalli, M.; Morris, S.L.; Tejos, N.; Crain, R.A.; Bower, R.G.; Prochaska, J.X.

Abstract

We present the first results from a study of O VI absorption around galaxies at z < 1.44 using data from a near-infrared grism spectroscopic Hubble Space Telescope Large Programme, the Quasar Sightline and Galaxy Evolution (QSAGE) survey. QSAGE is the first grism galaxy survey to focus on the circumgalactic medium at z ∼ 1, providing a blind survey of the galaxy population. The galaxy sample is H α flux limited (f(H α) > 2 × 10−17 erg s−1 cm−2) at 0.68 1014 cm−2) O VI absorption systems to be associated with M ∼ 109.5–10 M mass galaxies (Mhalo ∼ 1011.5–12 M dark matter haloes), and infer that they may be tracing predominantly collisionally ionized gas within the haloes of such galaxies.

Citation

Bielby, R., Stott, J., Cullen, F., Tripp, T., Burchett, J., Fumagalli, M., …Prochaska, J. (2019). Quasar Sightline and Galaxy Evolution (QSAGE) survey - I. The galaxy environment of O VI absorbers up to z = 1.4 around PKS 0232-04. Monthly Notices of the Royal Astronomical Society, 486(1), 21-41. https://doi.org/10.1093/mnras/stz774

• Journal Article Type: Article
• Acceptance Date: Mar 12, 2019
• Online Publication Date: Mar 16, 2019
• Publication Date: Jun 30, 2019
• Deposit Date: Apr 24, 2019
• Publicly Available Date: Apr 30, 2019
• Journal: Monthly Notices of the Royal Astronomical Society
• Print ISSN: 0035-8711
• Electronic ISSN: 1365-2966
• Publisher: Royal Astronomical Society
• Peer Reviewed: Peer Reviewed
• Volume: 486
• Issue: 1
• Pages: 21-41
• DOI: https://doi.org/10.1093/mnras/stz774
• Public URL: https://durham-repository.worktribe.com/output/1298025